8. At the center of the Sun, the mass density is p = 1.52 × 105kgm-3 an the mean opacity is K = 0.12m²kg-1. What is the mean free path for a photo at the Sun's center?
Q: Quantum Dot: Patent number 60-985-841 is for a quantum dot that only emits and absorbs three…
A:
Q: P17.5 Another important uncertainty principle is encountered in time-dependent systems. It relates…
A: Heinsenberg gave uncertainty principle which was basis of quantum physics. This principle was given…
Q: A thermometer gives a reading of 91.6 F +or-.0.2 F. What is the temperature in C? What is the…
A:
Q: When an electron moves from the n=5 orbit to the n=4 orbit of a hydrogen atom, a photon of light is…
A: Initial orbit = n = 5 Final orbit = n =4 Energy of the photon = E =??? Frequency of the radiation…
Q: a. How much energy is required to ionize a hydrogen atom containing an electron in the n=4 level? b.…
A:
Q: . Cold object radiation a. What is the lowest temperature that the simulation can model? b.…
A: When the object is cooled to its lowest possible temperature then the object is known as cold…
Q: Given the dispersion curve of plasma below, does plasma have normal or anomalous dispersion? @ @o @…
A: Solution: Based on the plot you provided, it appears that the refractive index of the plasma…
Q: A Blackbody radiator emits blue light with a wavelength of 475 nanometres (nm). a) Describe what a…
A: a) A black-body is an idealized physical body that absorbs all incident electromagnetic radiation…
Q: 1a. Calculate the speed that a gas-phase nitrogen molecule, N2, would have if it had the same energy…
A: a)Write the expression for the energy and substitute the corresponding expressions to obtain the…
Q: A blackbody at room temperature (T = 300K) emits 320 W. If the same blackbody emits 20 W, then what…
A:
Q: A system of two energy levels Eo and E₁ is populated by N particles at temperature T. The particles…
A: Solution: a). Let us consider N distinguishable particles are distributed in two energy levels E0…
Q: The formula for the distribution function of the photon statistic (or Planck statistic) is similar…
A: We know the Planck distribution law. We also know the Bose Einstein distribution law. We write down…
Q: An object radiates strongly at 473 nm. What is its blackbody temperature in Kelvins?
A: Approach to solving the question:Please see attached photos for detailed solutions. Thank you.…
Q: Just like the optical part of the spectrum, radio waves can be described in terms of photons -…
A: Given data: A radio wave Frequency (f) = 88.5 MHz = 88.5×106 Hz Required: The energy in Joules and…
Q: The blackbody radiation emitted from a furnace peaks at a wavelength of 2.7 10-6 m (0.0000027 m).…
A:
Q: A log in the fire is glowing red (λ = 629 nm). What is the temperature of the log, in kelvin?
A:
Q: A large cavity that has a very small hole and is maintained at a temperature T is a good…
A: Given values:- Temperature,(T)=400 0C=673.15 K ----(1) Area,(A)=6 mm2=6 x 10-6 m2 ----(2) Heat…
Q: The blackbody radiation emitted from a furnace peaks at a wavelength of 6.4 x 10-6 m (0.0000064 m).…
A: Given: The peak wavelength is 6.4x10-6 m.
Q: A. 1.2x10 R B. 1.8x10' R C. 1.8x 10 R D. 8.4x10 R 32. What is an exposure of 4.6x10 C/kg in…
A: Given, exposure E = 4.6 × 10-3 C/kg To convert C/kg to roentgens we have to use 1 C/kg = 3875.97 R
Q: A hydrogen atom, initially at rest, absorbs an ultraviolet photon with a wavelength of A = 169.8 nm.…
A:
Q: Suppose a star with radius 8.51 108 m has a peak wavelength of 689 nm in the spectrum of its…
A:
Q: An electron is bound to a region of space by a springlike force with natural frequency 04.082 x 10¹5…
A: We will use formula for energy of harmonic oscillator
Q: The blackbody radiation emitted from a furnace peak at a wavelength of 5.0 10-6 m (0.0000050 m).…
A: Given data λ=5×10-6 m
Q: Now, imagine you are gradually adding heat to a 500g block of ice initially at -25°C. You can ignore…
A: Given Data, Mass of block of ice is 500 g and initial temperature is -25 degree celsius. Specific…
Q: The blackbody radiation emitted from a furnace peaks at a wavelength of 3.5 x 106 m (0.0000035 m).…
A: Given- Wavelength λ=3.5×10-6 m
Q: The blackbody radiation emitted from a furnace peaks at a wavelength of 3.3 10-6 m (0.0000033 m).…
A:
Q: 5.40x106 atoms are excited to an upper energy level at t = 0 s. At the end of 30.0 ns , 90.0% of…
A: According to question we have to find--- How many photons have been emitted? What is the lifetime…
Q: 13.50eV 6.00ev 1.50ev Which equation would you use to calculate the frequencies of emission using…
A:
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Helium was first discovered when astronomers viewed the spectrum from the Sun and could not associate absorption lines associated with any terrestrial element. One wavelength that was strongly absorbed was 587.5 nm (1 nm = 1.0×10-9 m). What is the energy associated with this wavelength of light? a. 1.06 eV (or 1.70×10-19 J) b. 0.943 eV (or 1.51×10-19 J) c. 2.11 eV (or 3.38×10-19 J) d. 0.472 eV (or 7.57×10-20 J)Suppose a star with radius 8.57 × 108 m has a peak wavelength of 680 nm in the spectrum of its emitted radiation. (a) Find the energy of a photon with this wavelength. J/photon (b) What is the surface temperature of the star? K (c) At what rate is energy emitted from the star in the form of radiation? Assume the star is a blackbody (e = 1). W (d) Using the answer to part (a), estimate the rate at which photons leave the surface of the star. photons/s9